where a minimum salinity of 4.9 ppt. was recorded on

June 19. All stations showed some effects of the run-

off and the results are somewhat revealing of water circu-

lation in the area.

 Before flooding, the highest salinity levels were at

 Station 10; average for February and March were 37.5 and

 37.8 ppt. During these months the average salinity at

 individual stations ranged from 36.3 to 37.8 (Stations

 11 and 10 respectively); a range of 1.5 ppt. During the

 same period the range on any given day was from 0.7 ppt.

 to 1.8 ppt. (mean, 1.2 ppt.). As might be expected, sali-

 nity was most regular at Station 1, where the range of daily

 values was 34.8 to 37.0 ppt. and of monthly averages from

 February to June 35.2 to 37.0 ppt.

 After flooding,the range increased to as much as 31.0

ppt. when, on June 19, 1970 salinities of 4.9 ppt. and 35.9 ppt.

were measured at Stations 10 and 4. Figure 5 shows the effects

of flooding in May and June on the average salinity based on

eleven sampling stations. The rank of stations in order of

increasing salinity reduction was, in May: 1, 3, 6, (2,7) 5,

8, 9, (4, 11) 10. In June the relative rank was the same,

with the exception that salinity was least affected at Sta-

tions 4 and 11. The relative ranking is as follows (4, 11) 1,

3, 6, (2, 7) 5, (8, 9) 10. The degree of salinity changes


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